body mechanicals

[paddy_70]

Have a 1970 F-100 and need to know how you get to linkage on windshield wiper. I need to replace gaskets on outer linkage assembly.

[Jacksdad]

I just replaced the driver's side assembly and you have to pull the dash - undo the screws around the edge, disconnect the speedo cable and wiring connector and you'll much more room to work. The wiper assembly has three bolts and a c-clip, but you might get away with leaving the clip in place.
Not sure about the other side though. Pull the glove box liner maybe?

[Ranchero50]

Yeah, wipers went in first so it's easiest with everything out of the truck. Spray the bolts a couple days before trying to break them off. I used windshield strip caulk as a gasket when I installed mine. No leaks. PITA to install because the metal dash hurts as it gnaws on your arms.

[Jacksdad]

Yep - I doused the ends of the bolts through the cowl vents for a few days before I attempted it too. Should have mentioned that because the ends are exposed to the elements. Not as much of a big deal in SoCal as elsewhere, but it still helped.
And Ranchero's right. Prepare to meet some nasty sharp edges while you're doing it. That's why I was wondering if you might be able to leave the C-clips holding the arms in place, because they're a bear to remove. And they're even worse to replace. Luckily I grabbed a spare when I pulled the assembly at the wrecking yard, because the first one disappeared without trace when it slipped out of my fingers.